<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <requires lib="gtk+" version="3.20"/>
  <template class="DemixedgtkWindow" parent="GtkApplicationWindow">
    <property name="default-width">600</property>
    <property name="default-height">300</property>
    <child type="titlebar">
      <object class="GtkHeaderBar" id="header_bar">
        <property name="visible">True</property>
        <property name="show-close-button">True</property>
        <property name="title">Hello, World!</property>
      </object>
    </child>
    <child>
      <object class="GtkLabel" id="label">
        <property name="label">Hello, World!</property>
        <property name="visible">True</property>
        <attributes>
          <attribute name="weight" value="bold"/>
          <attribute name="scale" value="2"/>
        </attributes>
      </object>
    </child>
  </template>
</interface>
